For example, you could have a device that can only play MP4 videos, and not MKV. To be able to watch your MKV file, you have to know how to convert MKV to MP4 file format.

2] Try a free online tool to convert a GIF to MP4 There are multiple dedicated free online tools that can also be used for converting a GIF file to an MP4 video format.

To access any given file, you may need to convert it to a new format. For example, something your colleague created on a macOS word processor might not work on your Windows 10 computer.